[Bug tree-optimization/36389] [tuples] gimplify_cond_expr should be smarter

["jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #3 from jakub at gcc dot gnu dot org  2008-06-02 18:20 -------
Subject: Bug 36389

Author: jakub
Date: Mon Jun  2 18:19:29 2008
New Revision: 136287

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=136287
Log:
        PR tree-optimization/36389
        * gimplify.c (gimplify_cond_expr): If one or both branches are
        GOTO_EXPRs jumping to LABEL_DECLs, don't create unnecessary
        extra LABEL_DECLs and jumps around.
        * tree-cfg.c (remove_useless_stmts_cond): Set may_branch also
        for GIMPLE_COND stmts.
        * tree-eh.c (replace_goto_queue_cond_clause): Set label to
        create_artificial_label () rather than LABEL_EXPR.

Modified:
    branches/gimple-tuples-branch/gcc/ChangeLog.tuples
    branches/gimple-tuples-branch/gcc/gimplify.c
    branches/gimple-tuples-branch/gcc/tree-cfg.c
    branches/gimple-tuples-branch/gcc/tree-eh.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36389